dhis2-devs team mailing list archive

[Jason Pickering <jason.p.pickering@xxxxxxxxx>]

Possibly but IMHO, for more complex use cases, you would probably want to
use something like Geoserver to automatically generate the GeoJSON for you
possibly on the fly.

Creating this type of directory structure, for say, the entire world would
be daunting and a real pain to maintain. What I tried to do with the geodata
at WHO for instance, was to flatten everything into a single layer, and then
let Geoserver sort it out with the use of filters of WFS posts in order to
get what you actually need. From a geodatabase management standpoint, it is
much, much easier than having to maintain separate files in many different
directories. However if most users of DHIS2 would be working only with a few
files (admin1-4, PHU) maybe just a flat directory is enough.

The ability of the client to be able to consume a GeoJSON stream from a
server would probably be a better feature to focus on, with the client being
able to connect to a WMS server and parse a GetFeatureRequest in order to
allow either 1) population of the organization unit hierarchy (Knut's
request) or 2) simply downloading of the GeoJSON file for an already
populated hierarchy. A refresh feature would be good, as data can change.
Otherwise, maybe the code could be altered at some point to allow the
Mapping client to download the GeoJSON files directly from Geoserver without
having to maintain the GeoJSON files locally. Maintenance of these GeoJSON
files is going to be a bit of a headache for installations with many layers,
or maybe people simply do not want to bother with it but would prefer to
connect to other WMS servers out there to get their data.

I was primarily suggesting that directory structure however for the
contribution of the static GeoJSON files on Launchpad, so that they would
will be available to others.

However you should probably send your shape files to Knut at WHO, so that he
can upload them to the WHO Geoserver. :)

Best regards,
Jason


On Fri, Sep 11, 2009 at 10:33 AM, Jan Henrik Øverland <
janhenrik.overland@xxxxxxxxx> wrote:

> On Tue, Sep 8, 2009 at 3:39 PM, Jason Pickering <
> jason.p.pickering@xxxxxxxxx> wrote:
>
>> Bump on this one. More of a feature request than bug, but I do agree.
>>
>> We had mentioned about having a contrib folder. I think this would be a
>> good place for this type of data that would be potentially useful for
>> different parties.
>>
>> How about this structure, and then maybe the devs can fix the code around
>> it at some point?
>>
>> /contrib/geodata/iso2code/geojson/
>>
>> where the iso2code would be for a particular country.
>
>
> Right now the folder structure is simply /resources/geojson/. A more
> complex structure, like Jason suggested, might be needed eventually?
>
>
>>
>>
>> On Tue, Sep 8, 2009 at 10:05 AM, Ola Hodne Titlestad <olatitle@xxxxxxxxx>wrote:
>>
>>> Public bug reported:
>>>
>>> Currently all the map files (geojson) needed for the GIS module are
>>> stored in mapping/geojson in the dhis webapps folder.
>>> I can see the benefit from distributing these files together with the
>>> source code and inside war files, but often you will create these files
>>> locally and put them manually into webapps/dhis. These files are then easily
>>> lost when updating dhis to a new version (since you then have to delete
>>> webapps/dhis). Would it be possible to keep these files in a
>>> DHIS2_HOME/mapping/geojson folder in stead? Or if possible, fetch map files
>>> match from both locations so that you get the best of both sides, both
>>> distribution inside war files and a safe place to put additional maps?
>>>
>>> ** Affects: dhis2
>>>     Importance: Medium
>>>         Status: New
>>>
>>> ** Changed in: dhis2
>>>   Importance: Undecided => Medium
>>>
>>> ** Changed in: dhis2
>>>    Milestone: None => 2.0.3
>>>
>>> --
>>> Move mapping/geojson folder out of webapps/dhis?
>>> https://bugs.launchpad.net/bugs/426142
>>> You received this bug notification because you are a member of DHIS 2
>>> developers, which is subscribed to DHIS.
>>>
>>> Status in DHIS 2: New
>>>
>>> Bug description:
>>> Currently all the map files (geojson) needed for the GIS module are
>>> stored in mapping/geojson in the dhis webapps folder.
>>> I can see the benefit from distributing these files together with the
>>> source code and inside war files, but often you will create these files
>>> locally and put them manually into webapps/dhis. These files are then easily
>>> lost when updating dhis to a new version (since you then have to delete
>>> webapps/dhis). Would it be possible to keep these files in a
>>> DHIS2_HOME/mapping/geojson folder in stead? Or if possible, fetch map files
>>> match from both locations so that you get the best of both sides, both
>>> distribution inside war files and a safe place to put additional maps?
>>>
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>>>
>>
>>
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>